Hello, How do I make the piston move on 23 mm in my construction it locks, I tried with the angle of the lever, and in stop for the piston, but I can't find the solution

Out of category
1

Modification of a water pump, as it is designed, the maneuver is too hard for an elderly person.


50__assemblage.sldasm
2

Hello

Small problem, it's an assembly that you are sending, you would need these parts that compose it, otherwise we can't open it...

so make a pack and go or send it as a part file but we won't be able to make the movements or an Edrawing... Good luck @+.

AR


2022-08-04_100214.jpg
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2022-08-04_100158.jpg
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3

Hello

or virtualize the assembly parts to send the assembly file alone.

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4

Hello

As I imagine the principle of operation from the image, the mechanism presents at least two mobilities
- the reciprocating movement of the handle;
- the inclination of the connecting rod located on the left...

As for the lid (piston?) of the "kettle": rigid with vertical displacement, or deformable diaphragm?
The title of your question indicates a blockage, the text an evolution of the mechanism related to the values of the efforts.
A set of points to be clarified in order to hope for appropriate responses.


pompe.mp4
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5

  Hello jagardette,

Hello jagardette,

Indeed, I completely agree with m.bit.

it will never work as my former boss used to say... HIHIHIHI; HAHAHAHA

Good luck.

@+.

AR.

6

Thank you for your answers, a little more clarification, Marci


51__coupe_de_lassemblage.sldasm
7

It is indeed clearer, there is only mobility.
The tangency constraint may be responsible for the blockage. It is quite capricious when you make changes of position in the assembly.

It is better to put a distance constraint between the center of the roller and the center of the spherical dome (?) of the piston.

3 Likes
8

Hello

First of all, your 51 assembly is no more workable than your 50... Read @A.R.' s message again

First of all, I don't really understand the purpose or the functioning of this pump. An appetizer? An exit? The lever pushes the plunger but doesn't pull it?

Then, in terms of reducing the effort needed for an elderly person to lower the lever, some modifications must be made that better respect the laws governing the effect... lever.

Namely, to bring the pivot point as close as possible to the fulcrum. I would also bend the lever to keep it in a good hand position, since these modifications would change the angle of the lever. Something like this:


levier_plus_efficace.png
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